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Development and commissioning of a chemiluminescence imaging system for an optically-accessible high-pressure generic swirl burner

Runyon, Jon, Marsh, Richard, Sevcenco, Yura Alexander, Pugh, Daniel and Morris, Steven 2015. Development and commissioning of a chemiluminescence imaging system for an optically-accessible high-pressure generic swirl burner. Presented at: 7th European Combustion Meeting (ECM 2015), Budapest, Hungary, 31 Mar - 2 Apr 2015. EMC 2015: 7th European Combustion Meeting, March 30 - April 2, 2015, Budapest, Hungary. , vol. P3-29. pp. 1-6.

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Abstract

A chemiluminescence imaging system has been commissioned at Cardiff University’s Gas Turbine Research Centre. OH* and CH* chemiluminescence measurements were initially made on swirl-stabilised methane flames to find the optimal settings of intensifier gate timing, gain, and UV lens f-stop. Measurements with gate widths down to 100 μs have been achieved on methane flames with thermal powers up to 100 kW, pressures up to 3 bara, and global equivalence ratios of 0.6 to 1.2. OH* and CH* chemiluminescence intensities are found to vary with each parameter and yield sufficient spatial information to confirm visual evidence of stable flame operation as well as both lean and rich stability limits. Additionally, the OH*/CH* chemiluminescence intensity ratio is used for evaluation of the local equivalence ratio within the flame. Further OH* and CH* chemiluminescence measurements were made on BOS gas (65% CO, 34% N2, 1% H2) flames at comparable conditions to the CH4 flames to investigate the change in intensities, with marked variation identified between the two fuel blends. In addition to developing measurement capability, image processing and deconvolution techniques have also been integrated into the chemiluminescence system, extending the fundamental combustion research capabilities of the Gas Turbine Research Centre.

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: T Technology > TJ Mechanical engineering and machinery
ISBN: 978-963-12-1257-0
Related URLs:
Date of First Compliant Deposit: 16 November 2016
Last Modified: 25 Jun 2019 13:17
URI: http://orca.cf.ac.uk/id/eprint/95700

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